1) Vyr's chest: re-roll CHC. 1.5% is almost nothing and not worth a primary stat slot. However, life% is also an overrated stat, so this chest isn't perfect in general. (Read more on my opinion about life% in the guide linked in my signature.) Note that the stupid 1-2% CHC roll will be removed in 2.1 from Vyr's chest, so you'll have a good chance at finding a better one; don't waste too much on re-rolls. In the end, the chest is the Vyr piece that most people don't wear; try to get boots. For chest, there are better options (can also be found in my guide).
2) Use the mitigation calculator (again, link in my signature - I'm not doing this because I'm lazy but I'm currently on the road and have limited editing options ;-)) to figure out if all resist or armor is better. Hint: armor will be better ;-) Note that on helmet armor can even roll up to 595, so you got really unlucky with that roll. You could still re-roll the all resist to a socket and keep it for now; your helmet rolled not only good int and perfect CHC, but also a good secondary (you really want crowd control reduction on your helmet). Crafting more is only an option if you have many many materials (10k+); Aughild's helmet always comes with all resist, so crafting can take forever. Rather use it for now.
3) Don't waste any re-rolls on the rings. 2.1 might hit in 3 days and you want sockets on jewelry then anyways.
4) Again, I can't really dig up and post links here on mobile, but if you use the Builds section you will find plenty of builds for Vyr's sets in there. Do you have a Mirrorball? If yes, you can use the build I posted there. If not, you could replace Magic Missile with Spectral Blades and replace the Sparkflint from my build with a spender of your liking. Many ways to go actually ;-)
5) You have way too much life. It's better to get mitigation (all resist, armor elite/melee/ranged damage reduction). You can get by easily on Torment 6 with 300k life if only your mitigation is high enough.
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